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Synthesis, structure, electrochemical and magnetic properties of 2,6-bis(5-trifluoromethylpyrazol-3-yl)pyridine and its NiII complexes

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Abstract

2,6-Bis(5-trifluoromethylpyrazol-3-yl)pyridine (H2L) and its mono-, tri-, and tetranuclear NiII complexes were synthesized for the first time. All the obtained compounds were characterized by single-crystal X-ray diffraction analysis. In the complexes, 2,6-bis(5-trifluoromethylpyrazol-3-yl)pyridine exists in the neutral and dianionic forms and exhibits different coordination modes (κ3-, μ2-κ3:κ1-, and μ3-κ3:κ1:κ1). The electrochemical and magnetic properties of all compounds were studied. The tetranuclear NiII complex with the L2− dianion is reduced in two sequential reversible one-electron steps.

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Authors and Affiliations

  1. I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 ul. S. Kovalevskoi, 620041, Ekaterinburg, Russian Federation

    E. F. Khmara, D. L. Chizhov, P. A. Slepukhin, V. I. Filyakova, G. L. Rusinov & V. N. Charushin

  2. N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., 119991, Moscow, Russian Federation

    A. A. Sidorov, G. G. Aleksandrov, M. A. Kiskin, K. L. Tokarev & I. L. Eremenko

  3. Astrakhan State Technical University, 20a ul. Tatishcheva, 414056, Astrakhan, Russian Federation

    I. V. Smolyaninov

  4. International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090, Novosibirsk, Russian Federation

    A. S. Bogomyakov

  5. Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, 18 ul. S. Kovalevskoi, 620990, Ekaterinburg, Russian Federation

    D. V. Starichenko, Yu. N. Shvachko & A. V. Korolev

Authors
  1. E. F. Khmara
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  2. D. L. Chizhov
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  3. A. A. Sidorov
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  4. G. G. Aleksandrov
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  5. P. A. Slepukhin
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  6. M. A. Kiskin
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  7. K. L. Tokarev
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  8. V. I. Filyakova
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  9. G. L. Rusinov
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  10. I. V. Smolyaninov
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  11. A. S. Bogomyakov
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  12. D. V. Starichenko
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  13. Yu. N. Shvachko
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  14. A. V. Korolev
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  15. I. L. Eremenko
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  16. V. N. Charushin
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Corresponding author

Correspondence to E. F. Khmara.

Additional information

Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 312–323, February, 2012.

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Khmara, E.F., Chizhov, D.L., Sidorov, A.A. et al. Synthesis, structure, electrochemical and magnetic properties of 2,6-bis(5-trifluoromethylpyrazol-3-yl)pyridine and its NiII complexes. Russ Chem Bull 61, 313–325 (2012). https://doi.org/10.1007/s11172-012-0044-3

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  • DOI: https://doi.org/10.1007/s11172-012-0044-3

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